What airlines fly to Ontario?

Alaska Airlines, United Airlines and Allegiant Air are the top three most popular airlines that fly to Ontario from Medford according to our data. Alaska Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 5 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Medford to Ontario?

Alaska Airlines is the most popular carrier operating from Medford to Ontario

When did momondo last update prices for flights from Medford Airport to Ontario Airport?

Prices for flights from Medford Airport to Ontario Airport are updated daily.

How many operators does momondo search for flights from Medford Airport to Ontario Airport?

The number of operators available for flights from Medford Airport to Ontario Airport is 3 as of September 2026.

How old do you have to be to fly from Medford Airport to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Medford Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$121 Cheap Flights from Medford to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Medford to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:25 pm - 9:09 amMFR Medford-ONT Ontario

11h 44m1 stop Las Vegas Harry Reid Intl

8:35 pm - 2:58 pmONT Ontario-MFR Medford

18h 23m1 stop Las Vegas Harry Reid Intl

$226Multiple Airlines

Fri, Oct 23 - Thu, Oct 29

1:32 pm - 10:39 pmMFR Medford-ONT Ontario

9h 07m1 stop Seattle/Tacoma Intl

6:00 am - 11:23 amONT Ontario-MFR Medford

5h 23m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Sat, Dec 5 - Tue, Dec 8

5:25 pm - 10:43 pmMFR Medford-ONT Ontario

5h 18m1 stop Seattle/Tacoma Intl

6:00 pm - 11:18 pmONT Ontario-MFR Medford

5h 18m1 stop Seattle/Tacoma Intl

$263Delta

Wed, Oct 7 - Wed, Oct 14

6:37 pm - 11:42 pmMFR Medford-ONT Ontario

5h 05m1 stop Seattle/Tacoma Intl

6:02 am - 6:00 pmONT Ontario-MFR Medford

11h 58m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Fri, Oct 30 - Sat, Oct 31

6:37 pm - 11:42 pmMFR Medford-ONT Ontario

5h 05m1 stop Seattle/Tacoma Intl

11:13 am - 6:00 pmONT Ontario-MFR Medford

6h 47m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Thu, Oct 29 - Sat, Oct 31

12:20 pm - 5:12 pmMFR Medford-ONT Ontario

4h 52m1 stop Seattle/Tacoma Intl

6:00 pm - 11:18 pmONT Ontario-MFR Medford

5h 18m1 stop Seattle/Tacoma Intl

$323Delta

Thu, Oct 15 - Mon, Oct 19

1:22 pm - 6:43 pmMFR Medford-ONT Ontario

5h 21m1 stop Phoenix Sky Harbor Intl

4:29 pm - 11:26 pmONT Ontario-MFR Medford

6h 57m1 stop Phoenix Sky Harbor Intl

$367American Airlines

Wed, Oct 7 - Wed, Oct 14

1:22 pm - 6:43 pmMFR Medford-ONT Ontario

5h 21m1 stop Phoenix Sky Harbor Intl

6:00 am - 12:57 pmONT Ontario-MFR Medford

6h 57m1 stop Phoenix Sky Harbor Intl

$367American Airlines

Thu, Oct 29 - Sun, Nov 1

6:00 am - 12:18 pmMFR Medford-ONT Ontario

6h 18m1 stop San Francisco

6:07 am - 11:50 amONT Ontario-MFR Medford

5h 43m1 stop San Francisco

$417United Airlines

Fri, Oct 9 - Mon, Oct 12

2:08 pm - 8:31 pmMFR Medford-ONT Ontario

6h 23m1 stop San Francisco

6:07 am - 11:50 amONT Ontario-MFR Medford

5h 43m1 stop San Francisco

$467United Airlines

Thu, Oct 8 - Mon, Oct 12

Cheap last minute flights

Enter your travel dates to find the best prices.

1:34 pm - 7:03 pmMFR Medford-ONT Ontario

5h 29m1 stop Seattle/Tacoma Intl

10:47 am - 3:41 pmONT Ontario-MFR Medford

4h 54m1 stop Portland

$499Alaska Airlines

Wed, Sep 16 - Wed, Sep 23

1:34 pm - 7:03 pmMFR Medford-ONT Ontario

5h 29m1 stop Seattle/Tacoma Intl

7:12 am - 11:58 amONT Ontario-MFR Medford

4h 46m1 stop Portland

$499Alaska Airlines

Wed, Sep 16 - Thu, Sep 24

5:05 am - 9:51 amMFR Medford-ONT Ontario

4h 46m1 stop Portland

7:12 am - 11:58 amONT Ontario-MFR Medford

4h 46m1 stop Portland

$499Alaska Airlines

Tue, Sep 15 - Tue, Sep 22

1:34 pm - 7:03 pmMFR Medford-ONT Ontario

5h 29m1 stop Seattle/Tacoma Intl

7:12 am - 11:58 amONT Ontario-MFR Medford

4h 46m1 stop Portland

$499Alaska Airlines

Wed, Sep 16 - Fri, Sep 25

1:34 pm - 7:03 pmMFR Medford-ONT Ontario

5h 29m1 stop Seattle/Tacoma Intl

6:02 am - 12:57 pmONT Ontario-MFR Medford

6h 55m1 stop Seattle/Tacoma Intl

$499Alaska Airlines

Wed, Sep 16 - Sat, Sep 26

5:05 am - 9:51 amMFR Medford-ONT Ontario

4h 46m1 stop Portland

7:12 am - 11:58 amONT Ontario-MFR Medford

4h 46m1 stop Portland

$499Alaska Airlines

Tue, Sep 15 - Wed, Sep 23

1:34 pm - 7:03 pmMFR Medford-ONT Ontario

5h 29m1 stop Seattle/Tacoma Intl

12:12 pm - 6:21 pmONT Ontario-MFR Medford

6h 09m1 stop Seattle/Tacoma Intl

$499Alaska Airlines

Wed, Sep 16 - Tue, Sep 22

2:06 pm - 6:11 pmMFR Medford-ONT Ontario

4h 05m1 stop San Francisco

1:18 pm - 9:08 pmONT Ontario-MFR Medford

7h 50m1 stop Denver Intl

$605United Airlines

Mon, Sep 14 - Wed, Sep 16

5:29 pm - 10:40 pmMFR Medford-ONT Ontario

5h 11m1 stop Seattle/Tacoma Intl

6:00 am - 4:47 pmONT Ontario-MFR Medford

10h 47m2 stops Salt Lake City Seattle/Tacoma Intl

$720Delta

Fri, Sep 11 - Sat, Sep 12

6:13 am - 4:35 pmMFR Medford-ONT Ontario

10h 22m2 stops Seattle/Tacoma Intl Salt Lake City

6:00 am - 4:47 pmONT Ontario-MFR Medford

10h 47m2 stops Salt Lake City Seattle/Tacoma Intl

$938Delta

Fri, Sep 11 - Sat, Sep 12

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Alaska Airlines flights from Medford to Ontario

Our best Alaska Airlines deals on Medford to Ontario flight tickets

Alaska Airlines

Nov 14

MFR10:11 amMedford

8h 06m

1 stop

ONT6:17 pmOntario

Nov 18

ONT6:00 amOntario

8h 36m

1 stop

MFR2:36 pmMedford

$263

Alaska Airlines

Oct 23

MFR6:37 pmMedford

22h 28m

2 stops

ONT5:05 pmOntario

Oct 29

ONT6:56 pmOntario

5h 03m

1 stop

MFR11:59 pmMedford

$298

Alaska Airlines

Oct 15

MFR10:33 amMedford

13h 09m

1 stop

ONT11:42 pmOntario

Oct 19

ONT6:56 pmOntario

15h 00m

1 stop

MFR9:56 amMedford

$303

Delta flights from Medford to Ontario

Our best Delta deals on Medford to Ontario flight tickets

Delta

Oct 15

MFR12:20 pmMedford

4h 52m

1 stop

ONT5:12 pmOntario

Oct 19

ONT6:00 pmOntario

5h 18m

1 stop

MFR11:18 pmMedford

$323

Delta

Nov 6

MFR5:25 pmMedford

5h 18m

1 stop

ONT10:43 pmOntario

Nov 10

ONT5:59 pmOntario

5h 28m

1 stop

MFR11:27 pmMedford

$333

Delta

Dec 27

MFR6:10 amMedford

5h 09m

1 stop

ONT11:19 amOntario

Jan 9

ONT7:00 amOntario

9h 43m

1 stop

MFR4:43 pmMedford

$345

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Fri 10/23

9:25 pm-9:09 am

1 stop11h 44m

Ontario

Thu 10/29

8:35 pm-2:58 pm

1 stop18h 23m

$226

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Sat 12/5

1:32 pm-10:39 pm

1 stop9h 07m

Ontario

Tue 12/8

6:00 am-11:23 am

1 stop5h 23m

$263

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Wed 10/7

5:25 pm-10:43 pm

1 stop5h 18m

Ontario

Wed 10/14

6:00 pm-11:18 pm

1 stop5h 18m

$263

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Fri 10/30

6:37 pm-11:42 pm

1 stop5h 05m

Ontario

Sat 10/31

6:02 am-6:00 pm

1 stop11h 58m

$263

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Thu 10/29

6:37 pm-11:42 pm

1 stop5h 05m

Ontario

Sat 10/31

11:13 am-6:00 pm

1 stop6h 47m

$263

Quickest round-trip

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Thu 10/15

12:20 pm-5:12 pm

1 stop4h 52m

Ontario

Mon 10/19

6:00 pm-11:18 pm

1 stop5h 18m

$323

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Wed 10/7

1:22 pm-6:43 pm

1 stop5h 21m

Ontario

Wed 10/14

4:29 pm-11:26 pm

1 stop6h 57m

$367

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Thu 10/29

1:22 pm-6:43 pm

1 stop5h 21m

Ontario

Sun 11/1

6:00 am-12:57 pm

1 stop6h 57m

$367

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Fri 10/9

6:00 am-12:18 pm

1 stop6h 18m

Ontario

Mon 10/12

6:07 am-11:50 am

1 stop5h 43m

$417

MedfordOntario

MFR Medford - ONT Ontario

MFRONT

Medford

Thu 10/8

2:08 pm-8:31 pm

1 stop6h 23m

Ontario

Mon 10/12

6:07 am-11:50 am

1 stop5h 43m

$467

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Medford to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, February is the cheapest month to fly from Medford to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $167. If you aren’t able to travel during the month of February, then book flights to Ontario from Medford during March instead. Flights to Ontario in March, while not as cheap as those in February, still average around $262.

How have Medford to Ontario flight prices changed over time?

When to book flights from Medford to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Medford to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Medford to Ontario (MFR to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Medford to Ontario

Best Price Found	$121
Fastest flight time	3h 47m
Direct flights	None

The best one-way flight to Ontario from Medford in the past 72 hours is $121. The best round-trip flight deal from Medford to Ontario found on momondo in the last 72 hours is $226.

The fastest flight from Medford to Ontario takes 3h 47m

There are no direct flights from Medford to Ontario. There are no popular flight routes from Medford to Ontario.

Search flight deals

Frequently asked questions about flying from Medford to Ontario

How far is Medford to Ontario by plane?
The distance between Medford and Ontario is about 636.8 mi. Typically, this will take 3h 47m by plane in normal conditions.
When did momondo last update prices for flights from Medford Airport to Ontario Airport?
Prices for flights from Medford Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Medford Airport to Ontario Airport?
The number of operators available for flights from Medford Airport to Ontario Airport is 3 as of September 2026.
How old do you have to be to fly from Medford Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Medford Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Medford to Ontario?
momondo data reveals that the most frequently booked airline on the route from Medford to Ontario is Alaska Airlines, representing 47% of all bookings. The subsequent popular airlines are United Airlines at 36% and Delta at 17%.

Best airlines flying from Medford to Ontario

Compare and see reviews for airlines that fly from Medford to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $121	Free Cancellation	Rating 7.8 8,553 reviews	Search Delta flights
Alaska Airlines	PriceFrom $220	Free Cancellation	Rating 7.9 12,904 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 10,194 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Medford to Ontario?

It is quick and easy to find Medford to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

Can I find flights from Medford to Ontario with flexible booking policies on momondo?

All flight searches from Medford to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Medford to Ontario?

momondo helps you find the best flight between Medford and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Medford to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Medford and alert you when they change.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 10/10

Sat 10/17

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Medford

Complete your trip

Feeling lucky

Cheap flights from Medford to Los Angeles from $121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Medford to Los Angeles departing on 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Medford to Los Angeles

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Alaska Airlines flights from Medford to Ontario

Our best Alaska Airlines deals on Medford to Ontario flight tickets

Delta flights from Medford to Ontario

Our best Delta deals on Medford to Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Medford to Ontario that are best for you.

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Medford to Ontario

What is the cheapest month to fly to Ontario?

How have Medford to Ontario flight prices changed over time?

What is the cheapest airline that flies from Medford to Ontario?

What airlines fly to Ontario?

When to book flights from Medford to Ontario

Cheap Medford to Ontario (MFR to ONT) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Medford to Ontario

Best airlines flying from Medford to Ontario

Compare and see reviews for airlines that fly from Medford to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Medford

According to popular flight searches on momondo this year

Complete your trip to Los Angeles

Explore popular destinations other users love

According to popular flight searches on momondo this year